Panos Papadopoulos
Co-founder of Marathon Venture Capital, an Athens-based seed-stage VC firm.
Panos Papadopoulos is an engineer-turned-founder-turned-investor: he co-founded BugSense in 2011, a cloud-based mobile error-tracking tool used by clients like Skype and Groupon, acquired by Splunk in 2013, after which he worked as Director of Product Management at Splunk through 2016. In 2017 he teamed up with George Tziralis to found Marathon Venture Capital, an Athens-based seed fund built on the thesis that Greek/Southeast European founders could build globally competitive tech companies. Marathon has grown from an €8M first close to a €75M third fund (closed May 2025) and has broadened its thesis to explicitly include cybersecurity, AI, agtech, deep tech, and defense technology, with dual-use/defense portfolio investments including Delian Alliance Industries and Velos Rotors. He remains a Partner at Marathon Venture Capital today.
Overview
- Role
- Co-Founder, Marathon Venture Capital
- Based in
- Athens, Greece
- Prior experience
Companies0
No linked records yet.
Affiliated funds1
Frequently asked
- Who is Panos Papadopoulos?
- Panos Papadopoulos is an engineer-turned-founder-turned-investor: he co-founded BugSense in 2011, a cloud-based mobile error-tracking tool used by clients like Skype and Groupon, acquired by Splunk in 2013, after which he worked as Director of Product Management at Splunk through 2016. In 2017 he teamed up with George Tziralis to found Marathon Venture Capital, an Athens-based seed fund built on the thesis that Greek/Southeast European founders could build globally competitive tech companies. Marathon has grown from an €8M first close to a €75M third fund (closed May 2025) and has broadened its thesis to explicitly include cybersecurity, AI, agtech, deep tech, and defense technology, with dual-use/defense portfolio investments including Delian Alliance Industries and Velos Rotors. He remains a Partner at Marathon Venture Capital today.
- What is Panos Papadopoulos's role?
- Panos Papadopoulos is Co-Founder, Marathon Venture Capital, based in Athens, Greece.
Sources & citations4
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Panos Papadopoulos co-founded Marathon Venture Capital in 2017 with George Tziralis.
Marathon Venture Capital: Introducing Marathon Venture CapitalVerified2017-03-21 - 2
Co-founded BugSense in 2011 (with Jon Vlachogiannis), acquired by Splunk in 2013; Director of Product Management at Splunk through 2016.
Marathon Venture Capital: Panos Papadopoulos | TeamVerified2026-08-06 - 3
Marathon's third fund closed at €75M in May 2025, backed by the EIF and Hellenic Development Bank of Investment; fund targets IT infrastructure, cybersecurity, AI, agritech, defense technology, and deep tech.
European Investment Fund: EIF invests €20m in Marathon Venture Capital's third fundVerified2026-08-06 - 4
Marathon invested in Delian Alliance Industries, an Athens-based defense/autonomous-systems company; first investment October 2021.
Marathon Venture Capital: Delian Alliance Industries — PortfolioVerified2026-08-06